You said you had a SILVER 64 correct? Not just a polished housing? If you do indeed have a silver 64 its a 64/74/14. I had a silver bullet 66/74/14 and switched to a 64/71/13SS and it made a world of difference! A TON cooler egts and spool up is amazing compared to the bullet. I would say that 74mm wheel is a bit to big for you. I would try maybe a 62/71/13SS before I went twins, if your not dead set on twins.
if it is getting hot at wot with the silver bullet i wouldnt down grade to a smaller turbo. Im running a sps 62/71/14cm and i can hit 2k degrees fairly easy. i just stayed with thats small of a turbo bc i goin to twins pretty soon
that 71 wheel on mine spooled like crap and had high egts now towin up a big hill 900degrees is all i see and spools like a stock turbo setup
66/73/.90 t4 and a 480 with race cover no gates eitherwhat size twins u running
oh big ones haha to big for my setup
what u mean pull?haha yea but idk if id still be able to pull with those lol
Tried to get it hot started layin into it a 1400 its already makin 20psi it won't get past 1200degrees. My sticks are like 230hp or better they are big